UV_RESIDUAL

        [CLEAN\]UV_RESIDUAL [MODE] [Arg1 ... ArgN] [/FIELDS List]

      This command subtract Clean components OR fit results from the last UV_FIT
    command,  depending  on  specified argument MODE if present (can be CLEAN or
    UV_FIT), or on whether CLEAN (or its  specialized  versions  HOGBOM,  CLARK,
    etc...)  or  UV_FIT was done last if not. The residual UV data are available
    in SIC structure UV_RESIDUAL, and can be written by WRITE  UV_RESIDUAL  com-
    mand.

      The  UV_RESIDUAL  data  can also be selected for further imaging by UV_MAP
    (and thus UV_RESTORE) or displayed  by  SHOW  UV  using  command  UV_SELECT.
    MODEL  and  UV_RESIDUAL  are  complementary  commands  (UV_DATA = UV_MODEL +
    UV_RESIDUAL); see HELP UV_RESIDUAL Note however.

    For the Clean component the syntax is
        [CLEAN\]UV_RESIDUAL [CLEAN] [Niter]
    that subtracts the Niter first (default all) Clean Components  from  the  UV
    data.

    For the UV_FIT results, Clean component the syntax is
        [CLEAN\]UV_RESIDUAL [UV_FIT] [F1 .. Fn]
    that subtracts the F1 to Fn fitted functions (default all) from the UV data.